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Oversampled interface for IC sensors with minimized analog content

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3 Author(s)
Leme, C.A. ; Integrated Circuits & Syst. Group, Inst. Superior Tecnico, Lisbon, Portugal ; Malcovati, P. ; Baltes, H.

In this paper we present a new oversampled modulator architecture for A/D conversion. This modulator allows a great simplification of the analog-front-end circuits at the expense of a more complex digital signal processing for the bit stream decoding. Moreover, the system can be partitioned into two blocks communicating through noise-immune signal lines. These two features are very advantageous for sensor interfaces in remote locations and where only a minimal amount of circuitry can be cointegrated with the sensor

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Instrumentation and Measurement, IEEE Transactions on  (Volume:44 ,  Issue: 3 )